Merge pull request #2685 from jeffng-or/at-aes-block-updates

updated aes-block config based on autotuner results; updated autotune…

Author: maliberty

flow/designs/asap7/aes-block/autotuner.json

@@ -3,16 +3,16 @@
     "_SDC_CLK_PERIOD": {
         "type": "float",
         "minmax": [
-            100,
+            300,
             600
         ],
         "step": 0
     },
     "CORE_UTILIZATION": {
         "type": "int",
         "minmax": [
-            0,
-            20
+            20,
+            50
         ],
         "step": 1
     },
@@ -35,16 +35,16 @@
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            1,
-            5
+            0,
+            3
         ],
         "step": 1
     },
     "CELL_PAD_IN_SITES_DETAIL_PLACEMENT": {
         "type": "int",
         "minmax": [
-            1,
-            5
+            0,
+            3
         ],
         "step": 1
     },
@@ -60,7 +60,7 @@
         "type": "float",
         "minmax": [
             0.0,
-            0.99
+            0.2
         ],
         "step": 0
     },

flow/designs/asap7/aes-block/config.mk

@@ -8,8 +8,8 @@ export SDC_FILE      = $(DESIGN_HOME)/$(PLATFORM)/$(DESIGN_NICKNAME)/constraint.
 
 export ABC_AREA               = 1
 
-export CORE_UTILIZATION       = 20
-export CORE_ASPECT_RATIO      = 1
+export CORE_UTILIZATION       = 27
+export CORE_ASPECT_RATIO      = 0.867
 export CORE_MARGIN            = 2
 export PLACE_DENSITY          = 0.65
 
@@ -29,4 +29,11 @@ export PWR_NETS_VOLTAGES      =
 # The macros are very small so use a smaller halo
 export MACRO_PLACE_HALO        ?= 5 5
 
-export ROUTING_LAYER_ADJUSTMENT = 0.3
+export ROUTING_LAYER_ADJUSTMENT = 0.23
+
+# Parameters from AutoTuner runs
+export CELL_PAD_IN_SITES_GLOBAL_PLACEMENT = 2
+export CELL_PAD_IN_SITES_DETAIL_PLACEMENT = 1
+export CTS_CLUSTER_SIZE = 155
+export CTS_CLUSTER_DIAMETER = 248
+export PLACE_DENSITY_LB_ADDON = 0.14

flow/designs/asap7/aes-block/constraint.sdc

@@ -1,6 +1,6 @@
 set clk_name  clk
 set clk_port_name clk
-set clk_period 400 
+set clk_period 475
 set clk_io_pct 0.2
 
 set clk_port [get_ports $clk_port_name]